diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
index 0c6650d2..06dfdc91 100644
--- a/.github/workflows/spec.yml
+++ b/.github/workflows/spec.yml
@@ -12,6 +12,7 @@ jobs:
     strategy:
       matrix:
         ruby:
+          - 3.3
           - 3.1
           - "3.0"
           - 2.7
@@ -25,13 +26,6 @@ jobs:
           - mysql
           - postgresql
           - sqlite3
-        include:
-          - ruby: truffleruby-head
-            db: postgresql
-            gemfile: gemfiles/activerecord_6.1.gemfile
-          - ruby: truffleruby-head
-            db: postgresql
-            gemfile: gemfiles/activerecord_7.0.gemfile
         exclude:
           - ruby: 2.5
             gemfile: gemfiles/activerecord_7.0.gemfile
diff --git a/.gitignore b/.gitignore
index 86609ae1..b1ea5e53 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 *.sqlite3
 /pkg/*
 .bundle
-.ruby-version
 spec/internal/config/database.yml
 tmp*.sw?
 *.sw?
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 00000000..15a27998
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.3.0